blockquote, body, dd, dir, dl, fieldset, figure, form, h1, h2, h3, h4, h5, h6, hr, input, legend, menu, ol, optgroup, p, pre, tbody, td, textarea, tfoot, th, thead, ul{
    padding: 0;
    margin: 0;
}
ul,ol{
    list-style: none;
}
a,u{
    text-decoration: none;
    color: #000;
}
b,strong{
    font-weight: 400;
}
i,em{
    font-style: normal;
}
h1,h2,h3,h4,h5,h6{
    font-size: 16px;
    font-weight: 400;  
}
.clear-fix::after{
    content: "";
    display: block;
    width: 0;
    height: 0;
    overflow: hidden;
    visibility: hidden;
    clear: both;
}
input{
    outline:none;
    border: 0;
}
/* 图片间距 */
img{
    display: block;
}